Home / 1,171.24-1,756.88-1,007.64

Finding the Fourth Proportional to 1,171.24, 1,756.88 and 1,007.64

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Solution

The fourth proportional to 1,171.24, 1,756.88 and 1,007.64 is: 1,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171.24 : 1,756.88 = 1,007.64 : x
  2. Step 2: Convert to fraction form
    1,171.24/1,756.88 = 1,007.64/x
  3. Step 3: Cross multiply
    1,171.24x = 1,756.88 × 1,007.64
  4. Step 4: Simplify right side
    1,171.24x = 1,770,302.56
  5. Step 5: Solve for x
    x = 1,770,302.56/1,171.24
  6. Step 6: Final answer
    x = 1,511.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.